Please according to the model of the original ink cartridge to purchase (previously used cartridge model) , don't directly according to the printer model,because the same printer model, different regions may use different cartridge model.If you any doubts, please contact us for advice in time.Thank you! Cartridge Model : 212XL Compatible brands: Epson Cartridge color: BK C M Y Ink type: Dye ink Ink capacity : Bk 18.2ml C M Y 14ml Whether the chip is included: Yes Version : For North America/For Oceania Page Yield : BK 350 Pages; CMY 350 Pages (at A4 Format, 5% Coverage) Compatible Printers: For Epson WorkForce WF-2830 WF-2850 Expression home XP-4100 XP-4105 Printer Features: 1: High yields for affordable high-volume printing.Same volume with original volume, make large printings. 2: Fast-drying pigment ink designed for high-speed print jobs. 3: Sharp text for professional-quality results.Any Question. 4: What's type of this ink bag?It is one time use ink bag with one time use chip and fast dring pigment ink.Could install and printing directly. 5: What's the ink inside, does it print good?The ink bag refill with fast dring that sepelized for this model. Price lower thanorigianl while good priting. Make priting more cost-effect. 6:If the chip different with us, our ink bag cann't using on your printer even printer model same.